Feature:1. Applicable Range: This battery tester supports internal resistance, voltage, and temperature testing, suitable for various battery, including lithium battery, carbon battery, and button cell, with a wide range of applications.2. Measurement Range: The battery internal resistance range is 0.000m3.100 (4 levels), with 1u resolution, the temperature range is 10.060.0 (single range), and the voltage range is 0.000V to 100.00V (2 levels).3. High Accuracy Measurement: This battery tester adopts resistance voltage division, filters out noise, and ADC samples to obtain accurate measurement values through program calculation and modification.4. Multiple Functions: Connect the meter and computer using a USB cable. After opening the software, it will automatically search for the COM port and connect, realize functions of reading real time measurement value, historical records, and synchronizing computer time to the meter.5. Threshold Setting: In the threshold setting interface, thresholds can be set to determine whether the test results are FAIL, NARNING, or PASS. Setting appropriate thresholds can help improve judgment and testing efficiency.6. Built in Battery: This tester has a built in rechargeable battery with 2500mAh large capacity design, providing lasting endurance. No need to frequently disassemble and replace battery, which is energy saving and eco friendly.Specification:Item Type: Battery TesterProduct Material: ABSBattery: 1 x Polymer Battery 2500mAh (Built in)TypeRangeMaximum DisplayResolutionAccuracyMeasuring CurrentResistance3 m3.100m1u1%fs. 20dgt.200mA30m31.00m10u0.5%fs. 15dgt.200mA300m310.0m100u0.5%fs. 15dgt.20mA33.1001m0.5%fs. 15dgt.2mAVoltage7V7.100V1mV0.2%fs. 10dgt.100V100.00V10mV0.2%fs. 10dgt.Temperature-10.0-60.060.00.11.0Function: Battery Internal Resistance Measurement, Battery Voltage Measurement, Temperature MeasurementAvoidance Noise Frequency: Yes, Automatic Frequency Range 920Hz-1080HzAccuracy Guarantee Temperature and Humidity: 235, below 75%rhInternal Resistance Measurement: 0.000m-3.100 (4 levels range)Voltage Measurement: 0.000V-100.00V (2 levels range)Temperature Measurement: -10.0-60.0 (single range)Resistance Resolution: 1uVoltage Resolution: 1mVTemperature Resolution: 0.1Maximum Input Voltage: DC100V (between + measurement terminal and - measurement terminal), not support AC inputInternal Resistance Measurement Method: 1KHz AC 4 terminal test method, open circuit terminal voltage 3V maximumMeasurement Current Method: 2.0mA-200mA (different range for different measurement current)Temperature Measurement Method: NTC Temperature Sensor (10K at 26)A D Conversion Mode: Successive Approximation TypeDisplay Update Frequency: 5 times per secondResponse Time: 200msMeasurement Time: About 2 secondsUSB Interface: With USB interface, stored data can be uploaded to the computer, save and printHold and Storage Function: Manual Hold and Storage, Automatic Hold and StorageMeasurement and Determination Function: Pre set PASS, NARNING, and FAIL determination thresholdsBattery Voltage: 5 levels battery power display, low battery voltage reminder, timely chargingAlarm Setting: YesAutomatic Shutdown: Shut down automatically after about 15 minutes without workPower Consumption: 300mA Minimum, 500mA MaximumVoltage: AC3700V/RMS (between circuit and housing)External Magnetic Field: <40A/mExternal Electric Field: <1V/m.Package List:1 x Tester1 x Testing Clamp1 x Temperature Probe2 x Keys1 x USB Cable1 x CD1 x User Manual1 x Aluminum Case